Means for holding cars on mine-cages.



C. W. PARSONS.

MEANS POR HOLDING CARS 0N MINE UAGRS.

APPLICATION FILED OCT. 6, 1913V Patnted Nov. 24, 1914.

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rHl: MORRIS PETERS CQ l PHnvnvLlrHrv 4 WAQHINUIUM n l C. W. PARSONS.

MEANS POR HOLDING CARS 0N MINE GASES,

APPLIOATION FILED OCT. 6, 1913.

1,1 18,510, Patented Nov. 24, 1914.

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THE NORM: PETERS C0 PHO/'o L/THU WASH/Numb! n C CLARANCE W.

PARSONS, F ST. LOUIS,` MISSOURI.

MEANS FOR HOLDING CARS 0N IVIINELCAGES.`

Specification of Letters Patent.

. ratented Nov. 24, 1914.

`Application filed October 6, 1913. Serial No. 793,679.

ToaZZ 'whom it may concern: y

Be it known that l, @Lain/moi; lV. ,Pan-

" sons, a citizen of the United States of America, and a resident of thecity of St. Louis and State of Missouri, have invented certain new anduseful Improvements `in Means for Holding Cars on Mine-Cages, of whichthe following is a full, clear, and exact description, reference beinghad tothe accompanying drawings, forming a part `of this specification.

My inventionrelates to car holding means of the kind commonly knowirascar keepers, through the medium of which iniiie cars are held from dis:ilacement ii ion dui'n cages when the cages are dumped.`

rl`his invention has for its object the production of a simple andhighly ellicient cai'I holding means which is not liable to impairmentin service, is positive in its action, and operates automaticallyintocar holding position, and into car releasingposition.

Figure I is a top or plan view of amine cage equipped with. my carholding means, the cage and the car holding means being shoivn as theyappear when the cage is iinmediately above the level of the tunnel in amine. Fig. Il is an elevation of the mine cage and car, and my carholding means, the parts being shown in full lines, as they appear whenthe car holdingmeans is in service during the ascent or descent of thecage, and indotted lines as they appear when the car holding means is ininoperative position to permit the transfer of the car to or from themine cage. Fig. III is an end elevation of the mine cage, the carthereon and the car holding means, with the latter shown in service.Fig. IV is a side elevation illustrating a modification.

In the drawings: A designates the platform of a mine cage, provided, asusual, With rails B adapted to receive the wheels of an ordinary minecar C, which may be transferred to and from the track railsD in a minetunneh The cage platform is pivotally supported, as is usual in dumping`cages, inorder that the contents of the car carried by the cage may bedumped at the top of the mine shaft. Inasmuch as the structure `of thecageconstitutes no part of my `present invention, further descriptionthereofl is deemed unnecessary.

My car holding means is so constructed as to be operable automaticallythrough the medium of a suitable abutment, Within the iiiine shaft,whereby the holding means is released from the car held thereby when theiiiiiie car is lowered to the mine. tunnel; and it is operableautomatically to rengage the car when it is replaced on the cagenfterbeing filled in the occurring during the upward movement of the minecar. These operations will loe fully explained in the 'followingdescription:

l designates posts arranged in pairs upon the cage platform A, the postsheilig so located loiigitudinally of the platform as to provide forpositions `approximately beneath the axles of a mine ear when the car isin its normal iiositioiioii the cage platform.

.2 designates arms or keepers having their lower ends pivotally mountedin the posts .l at ll, these keepers beingadapted to occupy the channelsin the posts, as seen in Figs. l and lll, and in full lines Fig. ll,when in p upright positions, and l'ieing adapted to he swung(.loiviiivardly, as seen in dotted lines .l `ig. ll. When upright, thekeepers occupy positions adjacent to the inner facing sides of the caraxle c toward which they are moved when elevated, and when held in suchupright positions, h v in iaiis about to be described, one pair ofthekeepers serves to hold the rection on the cage rails, and the otherpair tunnel the reiigagement both pairs of posts occupying` lnine earfioiii movement in one di?` of keepers serves to hold it from movementin the other direction on said rails. The keepers 2 are provided attheir free ends with lateral arms 3, which are adapted to overhang thecar axles, as seen most clearly 1n Fig. II. ,",lhese.lateral arms serveeli ciently to prevent the tilting of a mine car,

relative to the platform when the cage platform on which the car restsis dumped; and, by their use, I avoid the necessity of furnishingguards, suoli as ordinarily used, for pre venting tilting or tipping ofmine cars on dumping cages. Each keeper 2 of the pairs of keepers `isconnected to the opposite keeper of theother pair by toggles comprisingtoggle links pivoted at their outer ends and connected at their innerpins 6.

7 are toggle operating rods connected to the pivot` pins 6. These toggleoperating rods serve to straighten the purpose of elevating the keepers2 into their active positions, seenin Fig. II, the nievement of thetoggles being preferably such as ends by pivot toggles, for the l toplace the inner ends of their links above a dead center, in order thatthe toggles Will become self locked. To prevent undue upward movement ofthe toggles, one link of each pair is provided at its inner end with abottom tongue 8, which engages the loiver face of the opposing link.

9 designates a rock shaft suitably supported by a tiltable element ofthe mine cage beneath the platform A. rlhis rock shaft has lined to it apair of arms l0, pivoted to the lower ends of thetoggle operating rods7, thereby providing for the operating of said toggle operating rodswhen the rock shaft is rotated in either direction.

ll designates a Weighted lever arm fixed to the rock sl aft 9. rl`hislever arm tends normally to hold the arms l0 elevated, whereby thetoggles connected to the keepers 2 are maintained in spread conditionbetween the keepers, and act to hold the latter in upright positions forthe desired service of restraining the mine car from displacement on themine cage platform. rlhe parts of the car holding means occupy thepositions described ivhen the mine cage platforn'l is at the top ot themine shaft and is being dumped, and also While the mine cage is intransit in the shaft. YW hen, however, the mine cagr` approaches thelocation of the tunnel in the mine into which the car on the cageplatform is to be transferred, the Weighted lever il strikes a suitableabutment, such as that shown at l2, With the result of causing saidlever to be lifted, the rock shaft 9 to be rotated, moving the arms l0and the toggle operating rods 7 downwardly, whereby the keeper operatingtoggles are folded and the keepers are lowered, as indicated by dottedlines Fig. il, 'thereby freeing the mine car and permitting its removalfrom and replacement on the cage platform.

The construction in the modification illus- Copies of this patent may beobtained for so made are desirable lwhen the mine cars in use v-havetheir bodies so located above their axles as to prevent the use of thearms 3 on the keepers as in the first described construction. ln the useof the keepers 2, it is necessary to utilize independent means forpreventing tilting of the mine oar, relative to the platform when thecage platform is tilted, and guards lil of a usual type may be Vused insuch instance.

l claim rllhe combination with a tiltable mine cage platform, of postssnrinonnting said platform, keepers adapted to engage the axles of amine car, said keepers being pivoted to the loiver portions of saidposts and the latter being provided with channel shaped upper portionsadapted to receive and hold the keepers, and automatic means for movingsaid keepers upwardly into the channel shaped portions of said posts andinto engagement with the car axles, said means including a toggle, abovesaid platform, connecting said keepers, a toggle operating rod extendingthrough said platform, a Weighted lever tending to hold said keepers inthe channel shaped upper portions of the said posts, said Weighted leverbeing connected to said toggle operating god, and an abutment adapted tobe engaged by said Weighted lever ivhile the mine cage platform is inmotion, so as to operate the toggle, thereby withdrawing the keepersfrom the channel shaped upper portions of said posts.

ernennen vv. Passons.

In the presence of- E. K. CLARK, E. B. LiNN.

five cents each, by addressing the Gommissoner of Patents,

Washington, ID. C.

